DS_1209F_004
73S1209F Data Sheet
ICE INTERFACE
PLL
and
TIMEBASES
VDD
VDD
VCC
CONTROL
LOGIC
VCC
GND
VOLTAGE REFERENCE
AND FUSE TRIM
CIRCUITRY
VPD REGULATOR
RST
CLK
X12IN
12MHz
OSCILLATOR
OCDSI
SMART
CARD
ISO
X12OUT
I/O
FLASH/ROM
INTERFACE
AUX1
PROGRAM
MEMORY
32KB
MEMORY_
CONTROL
UNIT
CONTROL
AUX2
GND
RAM_
SFR_
CONTROL
TIMER_0_
1
ROW0
ROW1
ROW2
PRES
SCRATCH
IRAM
256B
PRESB
ROW3
ROW4
ROW5
COL0
COL1
COL2
COL3
COL4
FLASH
INTERFACE
CORE
KEYPAD
INTERFACE
EXTERNAL
SMART
CARD
SCLK
SIO
ALU
INTERFACE
WATCH-
DOG
TIMER
PMU
DATA
XRAM
2KB
INT2
INT3
PORTS
ISR
SERIAL
SCL
SDA
USR0
I2C
MASTER
INT.
USR1
USR2
USR3
USR4
USR5
USR6
USR7
USR8
PERIPHERAL
INTERFACE
and SFR LOGIC
LED
DRIVERS
Pins avaiable on both 68 and 44 pin packages.
Pins only avaiable on 68 pin package.
Figure 1: IC Functional Block Diagram
Rev. 1.2
7
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
